Heater for engines



Jan. 10, 1928. 1,655,434

E. OMALLEYw ET AL HEATER FOR ENGINES Filed April 11, 1925' Patented Jan. 10, 1928.

UNITED STATES PATENT OFFICE.

EDWARD OMALLEY AND EDWARD W. OMALLEY, OF CHICAGO, ILLINOIS.

HEATER FOR ENGINES.

Application filed April 11, 1925. Serial No. 22,264.

engine may be heated for the purpose of warming the motor preliminary to starting the same. The electric heater is adapted to be connected to a source of electricity in the garage in'which the motor vehicle may be stored or a shop or dwelling in which a stationary engine may be mounted. Another object of the invention is to provide a container'or heater for the carrier which may be readily applied to that part of the water jacket of the engine adjacent the combustion chambers of the cylinders to thereby obtain a prompt and effective application of heat to that portion of the engine where it is mostneeded for the warming of the fuel in order to-enable the initial explosions of the motor to be facilitated.

Another object of the invention is to provide aheating device in which means are provided for imparting the initial heating action of the heater to only a small quantity of water whereby the water may be quickly heated and providing means whereby the continued heating of the remaining body of water in the circulating system is gradually brought in contact with theheater sole- 1y by the circulation produced by the natural flow of the heated water in a rising column, with the colder water replacing the heated'water as the latter flows from the heater.

With these objects and others in view, the invention is embodied in preferable form in the construction hereinafter described and illustrated in the accompanyingdrawings, in which drawings Fig. 1 is a vertical section through a part of an internal combustion engine showing the improved heater applied thereto;

Fig. 2, a horizontal section on the line 2-4 of Fig. 1; and

Fig. 3, a vertical section on the line 33 of Fig. 1. j

The device may be applied to any internal combustion engine havm a water jacket. In the particular engine herein illustrated,

1 designates the combustion space of a cylinder of an internal combustion engine, 2 the spark plug and 3 that portion of the water jacket chamber which is immediately adjacent the combustion space and near the spark plug. In our invention, the heater shell or container is adapted to be mounted in an opening through the vwall of the water jacket portion 3, which opening may be the usual core opening formed in engines of many types or may be an openingspecially drilled in the water jacket. In the preferable structural embodiment of the invention, a pipe section 4. is provided which is threaded into the opening of the wall of the water jacket chamber 3 and bears tigh'tly at its outer end against a shoulder formed on a threaded flange 5 of the main shell 6 of the container. A threaded coupling nut 7 serves to clamp the body of the shell to the pipe section 4;. The main body of the shell is substantially circular in outline and has a water containing chamber 8 which depends below the level of the pipe section 4 and the portion 3 of the water jacket to which the tie vice is applied. A horizontal bridge wall 9 is formed in the pipe section 4 and registers with a similar horizontal bridge wall orpartition 10 formed in the main body oi the shell 6 and which wall 10 is curved downwardly within the body of the shell and extends past the center of the latter. This horizontal partition 10 has an opening in the center in which closely fits the walls of a heat radiating member or casing 11 of an electric heater., The outer end of this cas- '.ing is provided with a flange 12 which bears upon and is secured to a corresponding flange of the shell 6, the outer end of: the casing being closed by a plate 13 The plate 13 carries contact posts 14: which are electrically connected with an electric resistance and heating element 15 entirely -1nclosed within the heat radiating casing 11 of the heater. At the lowest point of the chamber 8, the body of the container is provided with an outlet pipe 16 controlled by a draincock 17 whereby the water may be drained from the container when desired and in order to prevent freezing.

In the use of the device, a connecting plug,

having connection with a suitable source of electricity, is connected to the posts 14 to establish a circuit through the electric heating unit. The water in the chamber 15 of the shell surrounding the radiating casing of the heater will be raised in temperature as the current flows through the'heater causing the I outer end of the downwardlycurved wall "in a up against. the heater, thus continuing the circulation until the water in the 'acket adjacent the combustion chamber has een heated and until the walls of the cylinder have been warmed sufiic ientlyntg facilitate the explosion of the fuel mixture."

The arrangement above described insures a prompt and effective heating of the water since the heating element is surrounded by "only a small quantity of water and the circulation of the cooler water thereto takes place gradual flow directed and controlled by the bridge wall 10. .This bridge wall also acts as a brace for the sides of the casing of the heating unit.

Having thus described our invention, what we claim is:

1.111 arheater for water jackets and the tainer for liquid,

like, a pipe section adapted to be threaded into an opening in the wall of a water jacket or the like, a locknut for securing the pipe section inplace, a horizontal partitlon in sa d pipe section, a water container having an opening registering with the pipe section,

means providing a swivelled connection between the container and the pipe section, a forked partitionin said container adapted to register with the partition-in said pipe sec- 40 tion, a cup-like closed casing with an opening at the outside of said container, said casingiitting in an opening in the container and water also fittingbetweerkfggks of said partition, and electric heatin a 'n the casing. '2. A heating'appliaii ce cog grisfig on-' a casing projecting into the container to provide therewith a liquid chamber of substantially uniformcross-section, an electric heating element in the casing, a passage forconnecting the container to the in terior' of a water jacket or the like, and a a forked partition in said passage abutting against the casing and partially surround ing the same, substantially as set forth.-

In testimony whereof we afiix our signatures. 

